Q62 | JNCIA-DC | Module2: Juniper's Modern Data Center Architectures

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*What is JNCIA-DC?*

The Data Center track enables you to demonstrate competence with data center technologies and related configuration and troubleshooting skills. JNCIA-DC, the associate-level certification in this track, is designed for data center networking professionals with introductory-level knowledge of the Juniper Networks Junos software and data center devices.

The written exam verifies your understanding of data center technologies, related platform configuration, and troubleshooting skills.

*Prerequisite Certification:* None
*Exam Length:* 90 minutes
*Exam Type:* 65 multiple-choice questions
*Exam Code:* JN0-280
*Recommended Training:* IJDCN - Introduction to Juniper Data Center Networking

*Exam Objectives:*
1. Data Center Architectures
2. Layer 2 Switching, VLANs and Security
3. Protocol-Independent Routing
4. Data Center Routing Protocols BGP/OSPF
5. High Availability (HA)

*Data Center Architectures*

Identify concepts and general features of Data Center architectures

- Traditional Architectures (multi-tier)
- IP-Fabric Architectures (Spine/Leaf)
- Layer 2 and Layer 3 strategies
- Overlay Network versus Underlay Network (Very Basic)
- EVPN/VXLAN basics/purpose

*Layer 2 Switching, VLANs and Security*

Identify the concepts, operation, or functionality of Layer 2 switching for the Junos OS

- Ethernet switching/bridging concepts and operations

Identify the concepts, benefits, or functionality of VLANs

- Port modes
- VLAN Tagging
- IRB

Identify the concepts, benefits, or functionality of Layer 2 Security

- MACsec
- MAC address control/filtering
- Storm Control

Describe how to configure, monitor, or troubleshoot Layer 2 switching, VLANs, or security

- Ethernet switching/bridging
- VLANs
- Layer 2 security features

*Protocol-Independent Routing*

Identify the concepts, operation, or functionality of various protocol-independent routing components

- Static, aggregate, and generated routes
- Martian addresses
- Routing instances, including RIB groups
- Load balancing
- Filter-based forwarding

Describe how to configure, monitor, or troubleshoot various protocol-independent routing components

- Static, aggregate, and generated routes
- Load balancing

*Data Center Routing Protocols BGP/OSPF*

Identify the concepts, operation, or functionality of OSPF

- Link-state database
- OSPF packet types
- Router ID
- Adjacencies and neighbors
- Designated router (DR) and backup designated router (BDR)
- OSPF area and router types
- LSA packet types

Describe how to configure, monitor, or troubleshoot OSPF

- Areas, interfaces, and neighbors
- Additional basic options
- Routing policy application
- Troubleshooting tools

Identify the concepts, operation, or functionality of BGP

- BGP basic operation
- BGP message types
- Attributes
- Route/path selection process
- IBGP and EBGP functionality and interaction

Describe how to configure, monitor, or troubleshoot BGP

- Groups and peers
- Additional basic options
- Routing policy application

*High Availability (HA)*

Identify the concepts, benefits, applications, or requirements of high availability

- Link aggregation groups (LAG)
- Graceful restart (GR)
- Bidirectional Forwarding Detection (BFD)
- Virtual Chassis


Describe how to configure, monitor, or troubleshoot high availability components

- Link aggregation groups (LAG)
- Graceful restart (GR)
- Bidirectional Forwarding Detection (BFD)

*IJDCN - Introduction to Juniper Data Center Networking*

This course lays the foundational knowledge necessary to understand a data center that is built upon an IP fabric, but does not include Ethernet VPN–Virtual Extensible LAN (EVPN-VXLAN) architecture.

This course covers Ethernet switching, VLANs, Layer 2 security features, routing policies, link aggregation, load balancing, filter-based forwarding (FBF), routing instances, BGP, graceful restart, and bidirectional forwarding detection (BFD).

*Q&A*

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